In
organic chemistry
Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.Clayden, J.; ...
, a biphenol refers to compounds with the formula (C
6H
4OH)
2. Such compounds formally result from the coupling of two
phenol
Phenol (also called carbolic acid) is an aromatic organic compound with the molecular formula . It is a white crystalline solid that is volatile. The molecule consists of a phenyl group () bonded to a hydroxy group (). Mildly acidic, it req ...
s.
{{short description, Chemical compound
Three symmetrical
isomer
In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers.
Iso ...
s of biphenol exist:
*
2,2'-Biphenol (
RN 1806-29-7)
m.p. 109 °C
*
3,3'-Biphenol (RN 612-76-0) m.p. 124.8 °C
*
4,4'-Biphenol (RN 92-88-6) m.p. 283 °C
Additionally, three unsymmetrical isomers of biphenol exist:
*
2,3'-Biphenol (RN 31835-45-7)
*
2,4'-Biphenol (RN 611-62-1) m.p. 162-163 °C
*
3,4'-Biphenol (RN 18855-13-5) m.p. 190 °C
Phenols
Biphenyls